Nuclear energy, in terms of an overall safety record, is better than other energy.
Summarise the arguments for the above statement associated with nuclear energy and fossil fuels. Justify your position.
Nuclear energy, in terms of an overall safety record, is better than other energy.
Summarise the arguments for the above statement associated with nuclear energy and fossil fuels. Justify your position.
Why fire sodium chloride not conducts electricity in its solid form
A tube of uniform cross-section of 1 cm² and length 3344 cm is divided into three compartments by using two frictionless pistons each of mass 202.64 gm. The compartments I, II & III are filled by equal masses of 80, O, and He gases respectively and placed at an angle 30 with horizontal as shown. If pressure in SO₂ compartment was 1 atm find volumes ratio (V, V, V₁) of compartments I, II and Ill. Assume volume of piston is negligible and temperature is constanti (Use g = 10 m/s², 1 atm = 101.32 10³ Ruty
Depending on the rate of reaction , what are the spontaneous chemical reactions
Why is it essential to wash the centrifugate containing bromine with carbon tetrachloride?
time?
The measured integration trace gives the ratio 0.90 to 0.45 to 2.70 to 1.35 for the peak at &= 1.52 , 1.39 , 1.21 and 0.93 , respectively. Use the table below to answer the following questions.
chemical shift (ppm) 0.5-5.0 and Description of H atom is ROH.
chemical shift (ppm) 0.7-1.3 and description of H atom is RCH3.
chemical shift (ppm)1.4-1.7 and description of H atom is R3CH.
chemical shift (ppm) 1.2 -1.4 and description of H atom is R2CH2.
chemical shift (ppm) is 2.1-2.6 and the description of H atom is RCH2CO.
chemical shift (ppm) is 3.1-4.2 and description of H atom is RCH2Br or RCH2CI.
chemical shift (ppm) is 9.0 -10.0 and the description of H atom is RCOH.
chemical shift (ppm) is 10.0-12.0 and the description of H atom is RCOOH
question
a) what compound is responsible for the signal at & =0 (1 mark answers with detailed explanation for every step please )
b) How many different types of proton are present in compound Z? (1 marks answer with detailed explanation for every step please)
Topics:Further synthesis and analysis
Q1
Describe a simple chemical test for distinguishing between the following pairs of compounds:
a) cyclohexane and cyclohexene (2 marks detailed answers with explanation for every step answers please)
b) propanol and propanone (2 marks detailed answers with explanation for every step please)
c) propan-1-ol and propan-2-ol (3 marks detailed answers with explanation for every step please)
Detailed answers please with explanation for every step please
Q2
Suggest how the following syntheses could be carried out in the laboratory:
a) chloroethane to ethanoic acid (5 marks detailed explanation with answers please)
b) chloroethane to 2-hydroxypropanenitrile (5 mark detailed answers with explanation for every step please)
c) chloroethane to aminoethane (1 mark with detailed answer with explanation for every step please)
(2 marks - K)
(6 marks - TI)